Friends and relatives of Kansas City Chiefs linebacker Jovan Belcher grieve outside the player's home on Dec. 1, 2012, in West Babylon, N.Y. Police said the Long Island native shot and killed his girlfriend before taking his own life on Saturday in Kansas City. (AP Photo/Frank Eltman)

FILE - In this Dec. 19, 2010, file photo, Kansas City Chiefs linebacker Jovan Belcher (59) walks off the field during the third quarter of an NFL football game against the St. Louis Rams in St. Louis. Police say Belcher fatally shot his girlfriend early Saturday, Dec. 1, 2012, in Kansas City, Mo., then drove to Arrowhead Stadium and committed suicide in front of his coach and general manager. (AP Photo/Seth Perlman, File)